<em>Nissan Murano</em>oil pressure sensor: how to diagnose and replace it yourself

Oil pressure sensor Nissan Murano (body Z50 And Z51) is a critical element of the engine lubrication system that is often ignored until the warning light comes on on the dashboard. This small part is responsible for monitoring oil pressure in real time and warning the driver about possible problems: from a simple lack of lubrication to serious malfunctions of the oil pump or clogged channels.

Owners Murano with motors VQ35DE (3.5 l) and VQ25DE (2.5 l) often encounter false sensor alarms, especially after 100–150 thousand kilometers. The reason lies in the wear of the membrane inside the device or oxidation of the contacts. In this article we will look at how distinguish a real malfunction from a sensor “glitch”, what errors the on-board computer gives, and how to replace it yourself without contacting service.

Symptoms of a malfunctioning oil pressure sensor Murano

The first and most obvious symptom is oil pressure light on on the dashboard (red oil can). However, this does not always mean the sensor is broken. Here are key signs that will help you more accurately diagnose the problem:

• 🔴 The lamp comes on at idle speed and goes out when the speed increases (a typical symptom of sensor wear or low oil level).
• 🔴 The lamp flashes when driving, especially when turning or braking (may indicate a clogged oil filter or problems with the oil pickup).
• 🔴 Error P0520 or P0521 in the on-board computer (the sensor signal does not correspond to the expected values).
• 🔴 The engine is unstable, but the oil level is normal (there may be a pressure leak through worn seals or valves).

Important: if the oil pressure light comes on simultaneously with an increase in engine temperature or the appearance of knocking sounds, turn off the engine immediately - these are signs of oil starvation, which can lead to engine seizure.

⚠️ Attention! On Murano with a mileage of more than 200 thousand km, false alarms of the oil pressure sensor can mask wear of the oil pump. Before replacing the sensor, check the pressure with a mechanical pressure gauge.

Where is the oil pressure sensor located? Nissan Murano?

Depending on the year of manufacture and engine type, the location of the sensor may differ, but in most cases it is installed:

• 📍 On the cylinder block on the right (in the direction of travel) next to the oil filter (for VQ35DE).
• 📍 On the cylinder head from the intake manifold (for VQ25DE).
• 📍 Under the intake manifold (on models before 2010, requires removal of the manifold for access).

To accurately identify the sensor, pay attention to its appearance: it is a small metal cylinder with one electrical connector and a threaded connection. On Murano used sensor with article number 25580-4M200 (original) or its analogues from Standard Motor Products (PS101) and Bosch (0 261 230 046).

Model Murano	Year of manufacture	Article number of the original sensor	Location
Z50 (VQ35DE)	2003–2007	25580-4M200	Cylinder block, right
Z50 (VQ25DE)	2005–2008	25580-AM600	Block head, inlet side
Z51 (VQ35DE)	2009–2014	25580-4M20A	Cylinder block, under intake manifold

On some modifications, the sensor may be hidden under a plastic cover or protection. Access will require removing the air duct or disconnecting the wiring harness from the intake manifold.

How to check the oil pressure sensor for Murano?

Before replacing the sensor, you need to make sure that this is the problem. Here 3 diagnostic methodswhich can be performed without special equipment:

1. Check with a multimeter

Disconnect the connector from the sensor and connect the multimeter probes in resistance measurement mode (200 Ohm). On a working sensor, the resistance should be:

• 🔋 Infinity (break) in the absence of pressure (atmospheric).
• 🔋 0–5 Ohm when applying pressure (can be simulated with your mouth through a hose).

2. Check with a mechanical pressure gauge

The most accurate method is to connect a mechanical pressure gauge instead of a sensor. Normal pressure values for Murano:

• 📊 Idling: 0.5–1.0 bar.
• 📊 3000 rpm: 2.0–4.5 bar.

If the pressure is normal and the lamp is on, the sensor is faulty. If the pressure is below normal, the problem is in the oil pump, filter or bearings.

3. Diagnostics via OBD-II

Connect the scanner (for example, ELM327) and check for errors:

• 🔧 P0520 — sensor circuit malfunction.
• 🔧 P0521 — incorrect sensor signal.
• 🔧 P0522 — low oil pressure (critical error!).

Step-by-step instructions for replacing the oil pressure sensor

Replacing the sensor with Murano takes 20–40 minutes and does not require special skills. You will need:

• 🔧 24 or 27 mm wrench (depending on the sensor model).
• 🔧 Torque wrench (optional for precise tightening).
• 🔧 New sensor with sealing ring (see table above for article number).
• 🔧 Cloths and contact cleaner (For example, WD-40).

Step 1. Preparation

Stop the engine and let it cool for 10-15 minutes. Disconnect the negative terminal of the battery to avoid short circuit. If the sensor is located under the intake manifold, remove the air duct for access.

Step 2. Removing the old sensor

Disconnect the electrical connector by pressing the latch. Carefully unscrew the sensor counterclockwise with a wrench. Be prepared for the fact that a small amount of oil may leak out of the hole - place a container.

⚠️ Attention! Do not use excessive force when unscrewing - the threads in the cylinder block are easily cut off. If the sensor is stuck, treat it with penetrating lubricant (Liqui Moly or PB Blaster) and wait 10 minutes.

Step 3: Install a new sensor

Clean the threads in the block from dirt and old O-ring. Apply a thin layer of sealant to the threads of the new sensor (optional) and screw it in by handto avoid skew. Then tighten firmly with a wrench 15–20 Nm.

Step 4. Check

Connect the connector, replace the battery terminal and start the engine. Make sure the oil pressure light goes out. If the error persists, reset it via OBD-II or by disconnecting the battery for 5 minutes.

Original vs analogues: which sensor to choose for Murano?

Original sensors from Nissan (25580-4M200) cost from 1,500 to 2,500 rubles, but their quality justifies the price. However, there are worthy analogues on the market:

Brand	Article	Price, rub.	Features
Standard Motor Products	PS101	800–1 200	Good quality, fits VQ35DE
Bosch	0 261 230 046	1 000–1 500	Long life but may have calibration issues
Febi Bilstein	25580	700–1 000	Budget option, frequent complaints about accuracy

When choosing an analogue, pay attention to:

• 🔍 Compatible with your engine (VQ25DE or VQ35DE).
• 🔍 Availability of O-ring included.
• 🔍 Owner reviews on forums (for example, Drive2 or MuranoClub).

⚠️ Attention! Sensors from Infiniti FX35 (same family VQ35) are identical in appearance, but may have a different calibration. Use only proven articles.

Common mistakes when replacing a sensor and how to avoid them

Even experienced car owners make mistakes that lead to repeated breakdowns or oil leaks. Here TOP-5 misses and how to prevent them:

• 🔧 Dragging the sensor — leads to thread cutting or housing deformation. Use a torque wrench with force 15–20 Nm.
• 🔧 Ignoring the O-ring — without it, oil leaks are possible. Always install a new ring, even if the old one “seems to be intact.”
• 🔧 Uncleaned contacts — oxidized connectors cause false alarms. Process contacts Contact Cleaner.
• 🔧 Replacing only the low pressure sensor - if the pressure gauge shows pressure below normal, the problem is not in the sensor, but in the lubrication system.
• 🔧 Using sealant on the O-ring - this leads to its swelling and leaks. The sealant is applied only to the threads (optional).

Another common mistake is failure to check the oil filter. A clogged or poor-quality filter (for example, cheap analogues without a check valve) can cause a drop in pressure, which the sensor will record as a malfunction.

What should I do if after replacing the sensor the lamp is still on?

1. Check the pressure with a mechanical pressure gauge. 2. Inspect the oil pump for wear. 3. Flush the lubrication system with a special fluid (for example, Liqui Moly Oil-Schlamm-Spulung). 4. Replace the oil with a more viscous one (for example, from 5W-30 to 5W-40).

How much does it cost to replace an oil pressure sensor at a service center?

The cost of work in car services varies depending on the region and the complexity of access to the sensor. Average prices in Russia (for 2026):

Service type	Price of work, rub.	Lead time
Official dealer Nissan	2 500–4 000	1–1.5 hours
Independent service	1 200–2 500	30–60 minutes
Mobile master (onsite)	1 800–3 000	40–90 minutes

Is it worth overpaying for official service? Only if your Murano under warranty. In other cases, an independent specialist with good reviews is enough. The main thing is to make sure that:

• 💰 Included in the price cleaning contacts and pressure check.
• 💰 Used original sensor or high-quality analogue.
• 💰 Provided work guarantee (at least 1 month).

If the sensor is located in a hard-to-reach location (for example, under the intake manifold on Murano Z51), the cost of work may increase by 30–50%.

FAQ: Frequently asked questions about the oil pressure sensor on Murano

Is it possible to drive if the oil pressure light is on, but the level is normal?

Short-term (before service) - possible, but no more than 50–100 km at low speeds (up to 2,500 rpm). Driving for a long time with the lamp on leads to oil starvation and wear of the liners. If the light only blinks at idle, the sensor is most likely to blame. If it lights up constantly, the problem is more serious (pump, bearings).

How often should the oil pressure sensor be replaced?

The sensor does not have a scheduled replacement period, but Murano It is recommended to check it every 100 thousand km. The average service life of the original sensor is 150–200 thousand km. Analogs last less (80–120 thousand km). Signs for replacement: false alarms, oxidation of contacts, mechanical damage.

What is the difference between the sensors for VQ25DE and VQ35DE?

Sensors for these engines not interchangeable! U VQ25DE the sensor has a different sensitivity range (designed for lower pressure). U VQ35DE The sensor is calibrated for high performance oil pump. Installing a non-original sensor will result in incorrect readings.

Is it possible to clean the old sensor instead of replacing it?

Theoretically yes, but this is a temporary solution. Wash the sensor in kerosene or WD-40, clean the contacts with sandpaper (fine grit). However, if the membrane is damaged or calibrated, cleaning will not help. In 80% of cases, after cleaning, the sensor operates for no more than 10–20 thousand km.

What oil should I fill in after replacing the sensor?

Recommended viscosity for Murano: 5W-30 or 5W-40 (depending on climate). Brands: Mobil 1 ESP 5W-30, Liqui Moly Special Tec AA 5W-30, Nissan Strong Save X 5W-40. After replacing the sensor, it is not necessary to change the oil, but if it is old (more than 10 thousand km), it is better to combine the procedures.